Distribusi tenaga listrik yang andal dan efisien merupakan tantangan utama dalam system ketenagalistrikan, terutama pada wilayah dengan kondisi geografis yang kompleks. Penyulang Wonotirto, yang terletak di Kabupaten Blitar, mengalami permasalahan utama berupa Panjang jaringan, serta frekuensi gangguan tinggi yang menyebabkan penurunan keandalan sistem. Penelitian ini bertujuan untuk merancang rekonfigurasi jaringan distribusi 20 kV Penyulang Wonotirto guna meningkatkan keefektifan dan keandalan sistem kelistrikan. Dimana di daerah Penyulang wonotirto banyak dinasti wisata pantai yang sedang berkembang dan butuh keandalan jaringan. Metode penelitian meliputi pengumpulan data teknis sistem distribusi, data gangguan, serta simulasi rekonfigurasi menggunakan perangkat lunak ETAP. Analisis dilakukan terhadap keandalan sistem sebelum dan sesudah rekonfigurasi. Hasil simulasi menunjukkan bahwa rekonfigurasi jaringan dengan metode pemecahan beban mampu mengurangi jatuh tegangan, meningkatkan efisiensi distribusi daya, serta menurunkan frekuensi gangguan proteksi penyulang. Dengan implementasi strategi rekonfigurasi ini, keandalan meningkat 2 kali lipat terhadap pasokan listrik di wilayah Wonotirto serta tegangan naik dari 18.9 kV di ujung menjadi 19.6 kV, serta menjadi referensi bagi pengembangan jaringan distribusi listrik di daerah lain dengan karakteristik serupa.

Reliable and efficient distribution of electrical energy is a major challenge in the electricity system, especially in areas with complex geographical conditions. The Wonotirto Feeder located in Blitar Regency experiences major problems in the form of a long network, as well as high frequency interference that causes a decrease in the transmission system. This study aims to design a reconfiguration of the 20 kV distribution network of the Wonotirto Feeder to improve the effectiveness and efficiency of the electricity system. Where in the Wonotirto Feeder area there are many coastal tourism dynasties that are developing and require network resolution. The research method includes collecting technical distribution system data, data interference, and reconfiguration simulation using ETAP software. Analysis was carried out on the system before and after reconfiguration. The simulation results show that network reconfiguration with the load breaking method is able to reduce voltage drops, increase power distribution efficiency, and reduce the frequency of feeder protection interference. With the implementation of this reconfiguration strategy, the brightness increased 2-fold to the electricity supply in the Wonotirto area and the voltage increased from 18.9 kV at the end to 19.6 kV, and became a reference for the development of electricity distribution networks in other areas with similar characteristics.